Prestashop import / module

We need a Prestashop Module & Order management module for suppliers to be made for the following purposes: - Based on an XML Product feed products needs to be imported into Prestashop - Each product has several service level (Based on the amount it takes for delivery to the customer), each service level has it's own price. Each service level has it's own sales price based on quantity, an example of the XML you can find here: [login to view URL] - In the frontend, customers only need to have the possibility to choose the service level & the quantity (Based on a drop down with the options from the XML), after that he can upload a file related to his purchase. - Order management module for suppliers: (This may be made via API at an external server, or internal in Prestashop (Based on what's the easiest option)) - A supplier need to have it's own login at a management adminpanel where he can see orders placed for his products (Only sees his products, not other products meant for other suppliers) - Download uploaded files related to the ordered product - Generate packing slips with a thumbnail of the uploaded file on it - Download .csv order list with all ordered product for the logged in supplier - Filter on a particular attributee from the XML (Productcolours / Printmethod in the XML) - Update the ordered products to a status like 'Done', 'In production' etc, this also needs to be possible in a list with all orders and via checkbox. Kind regards,